Merge remote-tracking branch 'origin/5.15' into dev

 Conflicts:
	examples/widgets/graphicsview/boxes/scene.h
	src/corelib/Qt5CoreMacros.cmake
	src/corelib/Qt6CoreMacros.cmake
	src/network/ssl/qsslsocket.cpp
	src/network/ssl/qsslsocket.h
	src/platformsupport/fontdatabases/windows/qwindowsfontenginedirectwrite.cpp
	src/testlib/CMakeLists.txt
	src/testlib/.prev_CMakeLists.txt
	tests/auto/corelib/tools/qscopeguard/tst_qscopeguard.cpp

Disabled building manual tests with CMake for now, because qmake
doesn't do it, and it confuses people.

Done-With: Alexandru Croitor <alexandru.croitor@qt.io>
Done-With: Volker Hilsheimer <volker.hilsheimer@qt.io>
Change-Id: I865ae347bd01f4e59f16d007b66d175a52f1f152

1 files changed, 32 insertions, 0 deletions

diff --git a/src/corelib/thread/qthreadpool.cpp b/src/corelib/thread/qthreadpool.cpp
index 5f23a78c8a..d1875a69a9 100644
--- a/src/corelib/thread/qthreadpool.cpp
+++ b/src/corelib/thread/qthreadpool.cpp
@@ -512,6 +512,22 @@ void QThreadPool::start(QRunnable *runnable, int priority)
 }
 
 /*!
+    \overload
+    \since 5.15
+
+    Reserves a thread and uses it to run \a fun, unless this thread will
+    make the current thread count exceed maxThreadCount().  In that case,
+    \a fun is added to a run queue instead. The \a priority argument can
+    be used to control the run queue's order of execution.
+*/
+void QThreadPool::start(std::function<void()> fun, int priority)
+{
+    if (!fun)
+        return;
+    start(QRunnable::create(std::move(fun)), priority);
+}
+
+/*!
     Attempts to reserve a thread to run \a runnable.
 
     If no threads are available at the time of calling, then this function
@@ -542,6 +558,22 @@ bool QThreadPool::tryStart(QRunnable *runnable)
     return d->tryStart(runnable);
 }
 
+/*!
+    \overload
+    \since 5.15
+    Attempts to reserve a thread to run \a fun.
+
+    If no threads are available at the time of calling, then this function
+    does nothing and returns \c false.  Otherwise, \a fun is run immediately
+    using one available thread and this function returns \c true.
+*/
+bool QThreadPool::tryStart(std::function<void()> fun)
+{
+    if (!fun)
+        return false;
+    return tryStart(QRunnable::create(std::move(fun)));
+}
+
 /*! \property QThreadPool::expiryTimeout
 
     Threads that are unused for \a expiryTimeout milliseconds are considered